Accessibility: Privacy: Improve the readability of the suggested text in Privacy Policy Guide.

Per WCAG 2.0 guidelines, big chunks of italic text should be avoided for better accessibility.

Props birgire, sabernhardt, xkon, garrett-eclipse, melchoyce, karmatosed, afercia, jepperask, SergeyBiryukov.
Fixes #44621. See #47327.
Built from https://develop.svn.wordpress.org/trunk@47147


git-svn-id: https://core.svn.wordpress.org/trunk@46947 1a063a9b-81f0-0310-95a4-ce76da25c4cd